refactor: bump version and add entries in CHANGELOG.md.

Author: mbfakourii

packages/dart/CHANGELOG.md

@@ -1,3 +1,9 @@
+## [5.2.0](https://github.com/parse-community/Parse-SDK-Flutter/compare/dart-5.1.3...dart-5.2.0) (2023-10-09)
+
+### Features
+
+* Add `context` in `ParseObject` ([#970](https://github.com/parse-community/Parse-SDK-Flutter/pull/970))
+
 ## [5.1.3](https://github.com/parse-community/Parse-SDK-Flutter/compare/dart-5.1.2...dart-5.1.3) (2023-07-18)
 
 ### Bug Fixes

packages/dart/lib/src/base/parse_constants.dart

@@ -1,7 +1,7 @@
 part of flutter_parse_sdk;
 
 // Library
-const String keySdkVersion = '5.1.3';
+const String keySdkVersion = '5.2.0';
 const String keyLibraryName = 'Flutter Parse SDK';
 
 // End Points

packages/dart/pubspec.yaml

@@ -1,6 +1,6 @@
 name: parse_server_sdk
 description: The Dart SDK to connect to Parse Server. Build your apps faster with Parse Platform, the complete application stack.
-version: 5.1.3
+version: 5.2.0
 homepage: https://parseplatform.org
 repository: https://github.com/parse-community/Parse-SDK-Flutter
 issue_tracker: https://github.com/parse-community/Parse-SDK-Flutter/issues